| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 906 (Very high) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 431 (Very high) | 1 (Low) | 6 (Low) | 0 (Low) | 1 (Low) |
| March | 212 (Very high) | 2,861 (Very high) | 8 (Low) | 0 (Low) | 0 (Low) |
| April | 21 (Low) | 4,165 (Very high) | 19 (Low) | 29 (Medium) | 17 (Low) |
| May | 104 (High) | 10 (Low) | 339 (Very high) | 84 (High) | 374 (High) |
| June | 19 (Low) | 3 (Low) | 347 (Very high) | 52 (High) | 550 (Very high) |
| July | 2 (Low) | 0 (Low) | 11 (Low) | 4 (Low) | 8 (Low) |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 1 (Low) |
| September | 1 (Low) | 3 (Low) | 3 (Low) | 2 (Low) | 0 (Low) |
| October | 3 (Low) | 3 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| November | 7 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |